DeepSeek API connection errors: distinguishing 401 and 404 issues

This article details common connection errors when using the DeepSeek API, distinguishing between HTTP status codes like 401 (unauthorized) and 404 (not found). It emphasizes that a 401 error typically indicates an issue with the API key or authorization header, while a 404 suggests an incorrect endpoint address. The author provides a diagnostic approach, stressing the importance of recording the exact response code and raw body to accurately identify the root cause among the seven documented error types, rather than assuming a single problem like an invalid key. AI

IMPACT Helps developers troubleshoot and successfully integrate with the DeepSeek API, potentially increasing its adoption.

RANK_REASON The item provides a technical guide for developers on troubleshooting API connection errors, including specific error codes and example requests.

Read on dev.to — LLM tag →

• 401
• DeepSeek API
• DEEPSEEK_API_KEY
• DeepSeek-V4 Flash

• infra
• other

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